IB Chemistry Topic 4

IB Chemistry Topic 4

1. Bonding

   • Covalent
     • "It is about sharing electron"
     • Non metallic
     • Polar - look at the electronegativity
       • Polar bonding and polar molecule
   • Metallic
     • Alloy
   • Molecular bond
     • London forces
     • Van der Waals' forces
     • Hydrogene bonding
       • H and O, N or F
   • Ionic

2. VSEPR

   • Valene shell Electron Pair Repulsion theory
     • The electron pairs in the outer shell tend to have as big distance between each other as possible
   • Helps finding out the structure
     • Tetrahedral
       • 5
       • 109,5*
     • Linear
       • 3
       • 180*
     • Trigonal planer
       • 4
       • 120*
   • Electrons
     • Lone pairs
     • Pair of electrons involved in covalent bonds

3. Giant Covalent Structure

   • Carbon
     • Diamond
     • Graphite
     • Graphene
     • Fullerene

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